'He is a brittle crazy glass'

 Born on this day in 1593 was the great devotional poet George Herbert. 
Here he is in full flow –

The Windows

Lord, how can man preach thy eternal word?
    He is a brittle crazy glass;
Yet in thy temple thou dost him afford
    This glorious and transcendent place,
    To be a window, through thy grace.
 
But when thou dost anneal in glass thy story,
    Making thy life to shine within
The holy preachers, then the light and glory
    More reverend grows, and more doth win;
    Which else shows waterish, bleak, and thin.
 
Doctrine and life, colors and light, in one
    When they combine and mingle, bring
A strong regard and awe; but speech alone
    Doth vanish like a flaring thing,
    And in the ear, not conscience, ring.

Quite so. The window above, by Christopher Webb, was installed in 1953 in Salisbury cathedral, just down the road from the parish where Herbert was Rector. It illustrates Herbert's poem 'Love-Joy' –

AS on a window late I cast mine eye, I saw a vine drop grapes with J and C Anneal’d on every bunch. One standing by Ask’d what it meant. I, who am never loth To spend my judgement, said, It seem’d to me To be the bodie and the letters both Of Joy and Charitie. Sir, you have not miss’d, The man reply’d; It figures JESUS CHRIST.